amcolash · April 22, 2025 08:43 · May 9, 2020 · Apr 5, 2020 · Apr 5, 2020 · Apr 5, 2020
diff --git a/instructions.md → ATTiny + Micronucleus b/instructions.md → ATTiny + Micronucleus
diff --git a/instructions.md b/instructions.md
@@ -4,7 +4,7 @@ This gist is a list of instructions that I used to program my ATTiny85s with Mic
 - ATTiny85
 - AVR programmer
 - 1 uF capacitor
-- Micronucleus FW found here: https://github.com/micronucleus/micronucleus/releases
+- Micronucleus FW: https://github.com/micronucleus/micronucleus/releases
 - avrdude: http://www.nongnu.org/avrdude/
 
 ## Setup:

diff --git a/instructions.md b/instructions.md
@@ -1,4 +1,4 @@
-This gist is a list of instructions that I used to program my ATTiny85s with Micronucleus. They worked for me, but your mileage may vary!
+This gist is a list of instructions that I used to program my ATTiny85s with Micronucleus. They worked for me, but your mileage may vary! I would highly recommend starting by looking at the SparkFun article linked at the bottom for schematics and more in-depth info. This gist is mostly just a copy/paste list.
 
 ## Required:
 - ATTiny85

diff --git a/instructions.md b/instructions.md
@@ -5,7 +5,7 @@ This gist is a list of instructions that I used to program my ATTiny85s with Mic
 - AVR programmer
 - 1 uF capacitor
 - Micronucleus FW found here: https://github.com/micronucleus/micronucleus/releases
-- avrdude
+- avrdude: http://www.nongnu.org/avrdude/
 
 ## Setup:
 - Attach the avr programmer to the tiny

diff --git a/instructions.md b/instructions.md
@@ -1,3 +1,5 @@
+This gist is a list of instructions that I used to program my ATTiny85s with Micronucleus. They worked for me, but your mileage may vary!
+
 ## Required:
 - ATTiny85
 - AVR programmer

diff --git a/instructions.md b/instructions.md
@@ -16,6 +16,7 @@
 - `cd micronucleus-master/firmware/releases`
 - Burn firmware: `avrdude -P usb -c usbasp -p t85 -U flash:w:t85_default.hex`
 - Burn fuses: `avrdude -P usb -c usbasp -p t85 -U lfuse:w:0xe2:m -U hfuse:w:0xdd:m -U efuse:w:0xfe:m`
+  - NOTE: user @german-namestnikov found that the above did not work and instead changed the value of the `CKSEL` bit. Instead they used `avrdude -P usb -c usbasp -p t85 -U lfuse:w:0xe1:m -U hfuse:w:0xdd:m -U efuse:w:0xfe:m`
 - Verify fuses (should read E:FE, H:DD, L:E2): `avrdude -P usb -c usbasp -p t85 -U lfuse:r:-:i`
 - Test it works by unplugging from avr, use usb connection
 - Go to commandline tool folder: `cd ../../commandline`
@@ -35,6 +36,6 @@ Restart Arduino
 Cheers!
 
 
-Sources:
+## Sources:
 - https://learn.sparkfun.com/tutorials/how-to-install-an-attiny-bootloader-with-virtual-usb/install-micronucleus
 - http://digistump.com/wiki/digispark/tutorials/connecting#software
diff --git a/instructions.md b/instructions.md
@@ -24,7 +24,7 @@
 ## Using with Arduino:
 - Add additional board: http://digistump.com/package_digistump_index.json
 - Install "Digistump AVR Boards"
-- Select board + choose ATTiny85
+- Select board "Digispark Default" and programmer "Micronucleus"
 
 If things don't work it is most likely that the arduino board package does not have the latest micronucleus tool.
 To fix, run `cp micronucleus-master/commandline/micronucleus ~/.arduino15/packages/digistump/tools/micronucleus/2.0a4`

diff --git a/instructions.md b/instructions.md
@@ -27,9 +27,11 @@
 - Select board + choose ATTiny85
 
 If things don't work it is most likely that the arduino board package does not have the latest micronucleus tool.
-To fix, run this: `cp micronucleus-master/commandline/micronucleus ~/.arduino15/packages/digistump/tools/micronucleus/2.0a4`
+To fix, run `cp micronucleus-master/commandline/micronucleus ~/.arduino15/packages/digistump/tools/micronucleus/2.0a4`
+
 Restart Arduino
 
+
 Cheers!
 
 

diff --git a/instructions.md b/instructions.md
@@ -0,0 +1,38 @@
+## Required:
+- ATTiny85
+- AVR programmer
+- 1 uF capacitor
+- Micronucleus FW found here: https://github.com/micronucleus/micronucleus/releases
+- avrdude
+
+## Setup:
+- Attach the avr programmer to the tiny
+- Attach cap from GND to RESET (Otherwise try GND <-> V+. I only needed this the 2nd time)
+- Plug in AVR programmer
+- Download FW and unzip
+- Make sure you have avrdude
+
+## Burning:
+- `cd micronucleus-master/firmware/releases`
+- Burn firmware: `avrdude -P usb -c usbasp -p t85 -U flash:w:t85_default.hex`
+- Burn fuses: `avrdude -P usb -c usbasp -p t85 -U lfuse:w:0xe2:m -U hfuse:w:0xdd:m -U efuse:w:0xfe:m`
+- Verify fuses (should read E:FE, H:DD, L:E2): `avrdude -P usb -c usbasp -p t85 -U lfuse:r:-:i`
+- Test it works by unplugging from avr, use usb connection
+- Go to commandline tool folder: `cd ../../commandline`
+- Build + test: `make && micronucleus -?`
+
+## Using with Arduino:
+- Add additional board: http://digistump.com/package_digistump_index.json
+- Install "Digistump AVR Boards"
+- Select board + choose ATTiny85
+
+If things don't work it is most likely that the arduino board package does not have the latest micronucleus tool.
+To fix, run this: `cp micronucleus-master/commandline/micronucleus ~/.arduino15/packages/digistump/tools/micronucleus/2.0a4`
+Restart Arduino
+
+Cheers!
+
+
+Sources:
+- https://learn.sparkfun.com/tutorials/how-to-install-an-attiny-bootloader-with-virtual-usb/install-micronucleus
+- http://digistump.com/wiki/digispark/tutorials/connecting#software
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